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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Petrov, R. H. | Madrid |
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Casati, R. |
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Kočí, Jan | Prague |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Lokhande, Abhishek
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article
Ionically conducting PVA-LiClO4 gel electrolyte for high performance flexible solid state supercapacitors
Abstract
The synthesis of polymer gel electrolyte having high ionic conductivity, excellent compatibility with active electrode material, mechanical tractability and long life is crucial to obtain majestic electrochemical performance for flexible solid state supercapacitors (FSS-SCs). Our present work describes effect of different polymers gel electrolytes on electrochemical properties of MnO<sub>2</sub> based FSS-SCs device. It is revealed that, MnO<sub>2</sub>-FSS-SCs with polyvinyl alcohol (PVA)–Lithium perchlorate (LiClO<sub>4</sub>) gel electrolyte demonstrate excellent electrochemical features such as maximum operating potential window (1.2 V), specific capacitance of 112 F g<sup>−1</sup> and energy density of 15 W h kg<sup>−1</sup> with extended cycling stability up to 2500 CV cycles. Moreover, the calendar life suggests negligible decrease in the electrochemical performance of MnO<sub>2</sub>-FSS-SCs after 20 days.